14B-1, 11am class: Last name A-L in Moore 100 Last name M-Z in Broad 2160E

14B-2, 1pm class:Last name A-L in Haines 39 Last name M-Z in LaKretz 110

14B-3, 3pm class:Last name A-K in Franz 1178 Last name L-R in CS 76 Last name S-Z in KNSY PV 1220B

Midterm is 1hr 50mins 5 Questions All material up to and including electrochemistry.In the Course Reader it is all material up to page 54.

For review work through past midterms (p.122-162 in Course Reader).Homework questions will be on the midterm.Bring a pen, simple scientific calculator, photo ID. Nothing else, no cell phones, no graphing calculators, etc.

If I could not attend a review session due to schedule conflicts, is it not possible to access that review session on my own time?

I would have really liked to go over some topics covered in a recent review session but could not make it due to another commitment. Are the TA review sessions also recorded and uploaded somewhere, or is it just Dr. Lavelle's?

As I am going over past midterms in the course reader I noticed that for certain problems points are deducted for not having the correct sig figs, while for other problems, sig figs were not taken into account for the total points. I was wondering for this midterm if sig figs will be a part of our total points for all the problems or if they will not be accounted for or if it's going to be a mixture of both?

Henry_Shin_3B wrote:If I could not attend a review session due to schedule conflicts, is it not possible to access that review session on my own time?

I would have really liked to go over some topics covered in a recent review session but could not make it due to another commitment. Are the TA review sessions also recorded and uploaded somewhere, or is it just Dr. Lavelle's?

I'm pretty sure only Dr. Lavelle's review session will be recorded; he even had to personally record and upload the videos he took of his review session because Bruincast, for whatever reason, refused to.

Chin_Alyssa_3I wrote:As I am going over past midterms in the course reader I noticed that for certain problems points are deducted for not having the correct sig figs, while for other problems, sig figs were not taken into account for the total points. I was wondering for this midterm if sig figs will be a part of our total points for all the problems or if they will not be accounted for or if it's going to be a mixture of both?

Some (not all) questions will have 1pt assigned to sig figs.Since the midterm is 110 points sig fig will be a very low %.

Even if every question had a sig fig point (which they don't) it would be a maximum of 5 points out of 110 points.

I would also like to know if we should know any specific derivations for the midterm. I know we haven't been tested on them in the past but there was a fairly large focus on the derivations of thermodynamics equations using the ideal gas law. Thank you!

Randon_Zahlout_3B wrote:I would also like to know if we should know any specific derivations for the midterm. I know we haven't been tested on them in the past but there was a fairly large focus on the derivations of thermodynamics equations using the ideal gas law. Thank you!

As posted several times: Everything I cover in class can be tested.

However the main emphasis is knowing the concepts and applying them to solve problems. Derivations can and are asked, but typically +90% are problem solving type questions.

Armani Dodson 1A wrote:FOR QUESTION 1a ON MIDTERM FOR WINTER 2016. WHY ARE MOLES BEING IGNORED IN THE EQUATION?

All reactants and products are one mole. Therefore the can be kJ or kJ.mol-1.

I mentioned this in class. We often accept both units unless the question explicitly asks what is the enthalpy change per mole of reactant or product, or asks for the standard enthalpy of formation. Then the answer must have units: kJ.mol-1

On Midterm 2013 Question 7, we seem to assume (after balancing the redox equation) that the number of moles we're dealing with is 10. Is that number taken off of the reduction half-equation, where we end up with 10 moles of bromide ions? Does this always apply (i.e. we always deal with the number of moles of anions left over after reduction)?

Nilla Sivakumar 2H wrote:On Midterm 2013 Question 7, we seem to assume (after balancing the redox equation) that the number of moles we're dealing with is 10. Is that number taken off of the reduction half-equation, where we end up with 10 moles of bromide ions? Does this always apply (i.e. we always deal with the number of moles of anions left over after reduction)?

Same as what I did in class: Balance the redox reaction such that the stoichiometric coefficients are all whole numbers and the electrons in the two half-reactions balance.

leilarishwain_3H wrote:What's the difference between an irreversible process and a reversible process?

A reversible process is one where T is constant and V increases while P decreases. For reversible/isothermal processes, we use the equation: w=-nRTln(V2/V1). For irreversible processes, T changes, and we use the equation: w=-P. In reversible/isothermal processes more work is done while in irreversible processes, less work is done.

I notice that every midterm in the past four years has been 8 questions, while this year there is only 5. Will each question simply have more subparts, with the same difficulty as the previous midterms, or should we expect something more challenging than the past four years?

Henry_Shin_3B wrote:I notice that every midterm in the past four years has been 8 questions, while this year there is only 5. Will each question simply have more subparts, with the same difficulty as the previous midterms, or should we expect something more challenging than the past four years?

If I got a wrong answer in question 5 part a, and then used that wrong answer correctly in part b, should I have gotten full credit for part b, or minus one point for part b? I already lost 4 points in part a, so I feel like losing a point in part b is getting punished twice.. Anyone know how this should work?

I was wondering the same thing; I know Dr. Lavelle made an announcement in class about having students volunteer to record the session, but does anyone know if the recordings were posted on Chemistry Community? Thanks in advance!

I was wondering the same thing; I know Dr. Lavelle made an announcement in class about having students volunteer to record the session, but does anyone know if the recordings were posted on Chemistry Community? Thanks in advance!

ChristinaRoble3J wrote:I can't find the midterm 2017 (aka the one we took) answers with the explanations is it is this thread? Or did lavelle post it elsewhere pls help I want to go over my midterm before the final.